Chains and heterogens:
PDB Chain Sequences:
>1cc0A (A:) irkklvivgdgacgktcllivnskdqfpevyvptvfenyvadievdgkqvelalwdtagq edydrlrplsypdtdvilmcfsidspdslenipekwtpevkhfcpnvpiilvgnkkdlrn dehtrrelakmkqepvkpeegrdmanrigafgymecsaktkdgvrevfematraalqarr gkkksgc
>1cc0C (C:) irkklvivgdgacgktcllivnskdqfpevyvptvfenyvadievdgkqvelalwdtagq edydrlrplsypdtdvilmcfsidspdslenipekwtpevkhfcpnvpiilvgnkkdlrn dehtrrelakmkqepvkpeegrdmanrigafgymecsaktkdgvrevfematraalqarr gkkksgc
>1cc0E (E:) svnykppaqksiqeiqeldkddeslrkykeallgrvavsadpnvpnvvvtgltlvcssap gpleldltgdlesfkkqsfvlkegveyrikisfrvnreivsgmkyiqhtyrkgvkidktd ymvgsygpraeeyefltpveeapkgmlargsysiksrftdddktdhlswewnltikkdwk
>1cc0F (F:) svnykppaqksiqeiqeldkddeslrkykeallgrvavsadpnvpnvvvtgltlvcssap gpleldltgdlesfkkqsfvlkegveyrikisfrvnreivsgmkyiqhtyrkgvkidktd ymvgsygpraeeyefltpveeapkgmlargsysiksrftdddktdhlswewnltikkdwk